Machine for making fuses.



L. & J. SGH ULMAN. MACHINE FOR MAKING FUSES.

APPLICATION FILED 00'1.12, 1906.

0 3 7 Patented Nov. 25 1913.

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Patented Nov. 25, 1913.

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LOUIS SCHULMAN AND JOSEPH SCHULMAN, OF NEW YORK, N. Y., ASSIGNOBS TO THEENSIG N-BICKFORD COMPANY, OF CONNECTICUT.

S IMSBURY, CONNECTICUT, A CORPORATION OF MACHINE FOR MAKING FUSES.

Specification of Letters atent.

Patented Nov. 25, 1913.

Application filed October 12, 190$. Serial No. 338,552.

and Josnrn SCHULMAN, citizens of theUnitedv States, residing,respectively, in the borough of Manhattan, city, county, and State ofNew York, and the borough of Brooklyn, city of New York, county ofKings, and Stateof New York, have invented certain new anduseful'lmprovement's in Machines for Making Fuses, of which thefollowing is a specification.

This invention relates to machines for making fuses or combustible stemsof the character employed in connection with fire crackers, fire works,blasting cartridges and other explosive and combustible devices, and themain objects of our invention are, first, to produce a fuse of highefliciency the envelop of which is of paper; second, to produce ,such.afuse continuously in considerable-lengths at a. high rate of speed;third, to so construct the machine that the various parts thereof shallbe readily accessible for repair and control; fourth, to

provide for the ready variation in diameter of the fuse Within widelimits, and lastly, generally, to improve the character of the product,and to reduce the expense of producing the same.

To these ends, we have provided a machine for twisting one or morestrips of paper into rope-like form around a combustible element whichis continuously fed to'the strip during the formin operation thereupon.In order to attain t 1e required speed of operation and to obviatefractures, we have so constructed and arranged the parts as to opposethe least resistance to the formation and travel of the fuse elementsand furthermore, we have rendered the strip-pliableby thoroughlymoistening the same before-it is acted upon in a forming operation.

Ourinvention also. consists in many novel details of construction andcombinations of parts such-as will be more readily understood by adetail description of a machine in which our invention is embodied, andto this end, we will now proceed to describe such a machine withreference to the accompanying drawings illustrating the same,

. and will then point out the novel features in claims. I, 1

In the drawings: Figure 1 s a view forming nozzle 16 located partly infront elevation, and partly in section of a machine constructed 1I 1accordance with the presentinvention. Fig. 2 is a view in horizontaltransverse section of the same upon the plane of theline 2--2 of Fig. 1,and looking in the direction of the arrow. Fig. 3 is a similar sectionalview looking in opposite direction. Fig. 4 is a detail verticalsectional view upon an enlarged scale through the forming members andfeed reservoir of the machine. Fig. 5 is an enlarged detail view in sideelevation of the forming nozzle showing a portion of the strip as beingformed around the same together with a sectional view of a portion ofthe die employed in conjunction with the forming nozzle. Fig. 6 is adetail sectional view upon an enlarged scale through one of the drawingbobbins employed, together with certain correlated parts. Fig. 7 is adetail view in vertical section through certain parts of the maindriving means of the machine.

The fuse to be constructed comprises an envelop or wrapping member, anda combustible elementwrapped by and contained withinthe envelop member.The envelop member conveniently comp-rises a .narrow strip of ribbon ofpaper 10 which is fed from a roll 11 suitably supported in the .ma-

chine. The, combustible element is preferably in the form of a granularmaterial 12 which is contained within a removably mounted reservoir 13.A core element for assisting in the feeding of the combustible materialmay also be employed, such element conveniently comprising one or moretextile threads 14 which are fed from suitable spools 15 through thereservoir as will be presently explained. The paper ribbon 10 is fedangularly toward a hollow tapering immediately beneath and in line'withthe reservoir 13, the said reservoir being conveniently provided with athroat piece 17 received within a recessed portion 18 at the upper endof the said nozzle. The nozzle is removably supported in the machine bybeing mounted in a hub 3.9 secured to or formed as a part of The lowerend of the nozzle is received within a counter-sunk portion 22 of a die23 convenlently mounted in the frame of the "mais received within thecoiled strip as it leaves the point of the nozzle and enters the die. Atthis point the strip is in the form of a helical coil and hence is inproper condition to receive the granular material and the feed of thegranular material is made more positive where the textile threads 14 areemploy- .ed as will be Well understood, the textile threads acting todraw the granular material down from the reservoir into the coiledstrip, and as the strip passes through the die, it is twisted intorope-like form so that all the component parts of the fuse becomeintimately associated.

Rotatively mounted beneath the forming element of the machine is a frame24, the

axis whereof is longitudinally in line with the axis of the said formingelement. The frame is provided, at its upper end, with a hub 25 which isjournaled in a bearing 26 secured to or formed as a part of the frame 20of the machine, and at its lower end the said frame is provided with asleeve 27 (see Fig. 7) which is disposed upon a central stud 28 securedfast to a hub 29 secured to or formed as a part of the said frame 20.The frame is arranged to be driven by a drive shaft 30 through themedium of a pair of bevel gears 31 and 32, the former of which issecured upon the drive shaft, and the latter disposed loosely upon thesleeve 27 A clutch member 33 is splined upon the sleeve 27 and isprovided with an operating handle 34 by which it may be movedlongitudinally upon the said sleeve; the face of the said clutch memberis provided with teeth for co-engagement with complementary teethdisposed upon the hub of the bevel gear 32. Near its upper end the frameis provided with a disposing member comprising two sp'ools or bobbins35, the said spools or bobbins being rotatively mounted upon studs 56secured fast to the said frame. Each of the said bobbins has securedfast to it a spur gear 36, the said spur gears bemg each arranged inmesh with a central pinion disposed fast upon the lower end of astationary hollow guide tube 38. Thisgear connection will result inmovements of rotation being imparted to the spools or bobbins abouttheir own axes when the frame 24 is rotated, while the said spools orbobbins will also be given a planetary movement around the axis of theframe at the same time. The assembled fuse elements, as they leave thedie 23 of the forming element of the machine, pass thence down throughthe hollow guide tube 38 to a direction roll 39, located near the basethereof; thence they pass around the spools or bobbins 35, preferablyseveral times around the same, and thence over several guide rolls 40,41, 42 to a distributing arm 43 and thence to a take-up drum 44. Thedistributing arm 43 d. is given a traversing movement over the drum 44by means of a cam 45, a follower arm 46 and a link 47 by which the saidarm 46 is connected to the distributing arm 43, the said cam 45 beingmounted upon a shaft 48 suitably journaled in the frame 24. The saidshaft has 'a worm wheel 49 "mounted thereon, the teeth of which are inmesh with a worm 50, disposed upon a shaft 51, and the upper end of thesaid shaft 51 is provided with a gear 52, the teeth of which aredisposed in mesh with the teeth of one of the wheels 36.

The drum 44 is conveniently mounted loosely in the frame, being providedwith a spindle 53, the lower end of which is adapted to be receivedwithin the upper end of the sleeve 27 of the frame 24. The frame isconveniently provided with a platform 54 for supporting the lower flangeof the drum. The drum is driven by frictional engagement with the frame,the speed of drive being preferably somewhat greater than is necessarywhen the drum is fully wound whereby the drum may be driven at asufficient speed to take up the fuse fed thereto by the bobbins 35.Frictional engagement of the drum with the frame will of course permitrequired lost motion to compensate for this excess drive.

Near the upperend of the machine, we have provided a roller andreservoir 55 as a means by which the paper element may be treated beforeit is received by the forming element. The reservoir preferably containsa liquid paste for the purpose of giving suflicient adhesive property tothe strip to cause it to permanently form itself around the combustibleelement in the formation ofthe fuse, the paste or other material havingalso the effect of increasing the pliability of the strip so as toreduce the danger of fracture While it is passing through the formcranklever and causes the arm 57 to strike the reservoir thereby vibratingthe same operation, the rotation of the frame 24 in imparting planetarymovements to the spools or bobbins 35, and in addition rota tionalmovements about their own axes, will draw the combined fuse elementsthrough the guide tube 38 and the die 23 of the forming member, while atthe same time twisting the same into rope-like form; This drawing of theelements will cause the strip 10 to be,

unwound from the roller 11 to pass over the paste or moistening roll ofthe reservoir 55, and around the nozzle 16, while at the same time, itwill draw the textile threads 14 from their spools 15 and the granularcombustible material 12 in a continuous stream from the reservoir 13.The finished fuse will be taken up upon the drum 4:4: as fast as it isfed thereto being evenly disposed upon the' drum by the distributing arm43. As has been above stated the twisting operation upon the fuseelements results in first forming the strip into a helical coil aroundthe nozzle 16 of the forming element, and then twisting it intorope-like form at a point below the said nozzle after it has receivedthe same angularly around thenozzle 16 to form a'helical coil, and thento pass the end thereof around the threads and to draw the threads andtwisted strip around the direction pulley 39, thence around the spools35. and thence around the direction rollers through the distributing armto the take-up roll. Thereafter the action of the machine is continuousuntil the drum has become filled, and thereafter it is only necessarytocut the fuse near the drum and to remove the drum, and immediately placeanother one in position and connect the cut end to the drum. Thestarting and stopping of the machine is, of course, controlled by thelever 34.

Having thus described our invention, we

claim and desire to secure by Letters Patent:

1. In a machine for making fuse, the com- I bination of a fixed hollownozzle, a fixed die below the nozzle, means for feeding paper in stripform about the exterior of the nozzle to form a tube, means forsupplying a combustible to the interior of the nozzle whereby saidcombustible will be delivered to the .interior of the tube as it isbeing formed, and means below the nozzle for bodily twistingthat portionof the fuse element comprising said tube and the combustible therein,which is between the nozzle bustible will be fed to the interior of thetube.

as it is being formed, a fixed die through which the tube is drawnduring its formation after it has left the nozzle and means for drawingthrough said die the fuse element which comprises said tube and thecombustible material therein, said means also serving to bodily twistsaid fuse element during its transit from the nozzle to the die.

3. In a machine for making fuses, the combination with a hollow taperingforming nozzle and means for feeding a combustible element therethrough,of means for guidinga strip of paper angularly around the nozzle, atake-up means, a bobbin arrangedto receive the product from the nozzle,and

means for rotating the bobbin upon its axis, and also with respect tothe axis of the bob bin for the purpose of simultaneously twist ing thepaper below the nozzle and drawing it past the nozzle while thecombustible element is being fed to the portion being twisted.

1. In a machine of the character described, the combination with aremovably mounted reservoir having a throat piece, a removable taperingforming nozzle arranged in line therewith and recessed to receive thethroat piece, and a die arranged in line with the nozzle, of means forfeeding a granular material from the reservoir through the nozzle anddie, means for guiding a strip of paper angularly around the nozzle andthrough the die, and means for twisting the paper below the nozzle, andfor drawing the same through the die.

5. In a machine of the character described, the combination with aforming member and means for feeding a strip thereto, of a framearranged to rotate about an axis longitudinally in line with the saidforming, member,

a bobbin carried by the said frame with its axis eccentric to the axisof the frame but parallel thereto, means for rotating the bobbin aboutits axis to draw the strip fromthe forming member, an means forsimultaneously rotating the flame, to simultaneously twist the" stripbelow the forming' member.

6. In a machine of the character described, the combination. with aforming member and means for feeding a strip thereto, of a framearranged to rotate about an axis lonbins, and means for rotating thebobbins around the forming member, and means for feeding granularmaterial to the fuse elements.

8. In improvements of the character described, the combination, with afuse formingmember, of an actuating member comprising a rotating frame,a reservoir feed member, and a vibration member comprising a crankedlever provided with a head arranged toplayupon said feed reservoir andwith a head arranged to be engaged in the rotation of said frame.

9. In improvements of the character described, an actuating membercomprising a rotating frame, and a disposing member carried by saidrotating frame and comprising means operated in the rotation of saidframe for advancing the completed product in a to and fro course, a drumfor receiving the completed product, and means for distributing thecompleted product upon the drum consisting of an oscillating armoperated in the rotation of said frame.

10. In improvements of the character described, the combination with aforming member, of means for drawing and twisting the fuse elementsthrough the forming member, said means including a device whereby thefuse is advanced in a to and fro course and a drum upon which thecompleted fuse is wound, and means for distributing the fuse upon thedrum.

I homes? 11. In improvements of the character described, thecombination, with a combustible element feed member comprising areservoir provided with an open end; of a forming member comprising adie and a nozzle located between said die and said open end of saidreservoir, said die being provided with a countersunk portion adjacentto said nozzle, and the end portion of said nozzle adjacent to saidcountersunk portion of said die being tapered.

12. In improvements of the character described, the combination, with afuse forming member, of an actuating member comprising a rotating frame,and a disposin member carried by said rotating frame an comprising meansoperated in the rotation .of the said frame for advancing the completedfuse in a to and fro course, a drum for receiving the completed fuse,and means for distributing the completed fuse upon the drum consistingof an oscillating ,arm

operated in the rotation of said frame.

13. In a machine for'making fuses, the combination with a forming membercom,- prising a hollow tapering nozzle and a die arranged coincidentwith the said nozzle, and provided with a counter-sunk portion forreceiving the tapered end of the nozzle, of means for feeding acombustible element through the nozzle and die, means for guiding,astrip of paper angularly around the nozzle, and means for twisting thepaper below the nozzle and for drawing the same through the die.

14. In a machine of the character described, the combination with a.forming nozzle, of means for guiding a strip of paper angularly aroundthe nozzle, a bobbin arranged to receive the paper from the nozzle,means for rotating. the bobbin about its axis and also with respect tothe axis of the bobbin for the purpose of simultaneously twisting thepaper below the nozzle and drawing it past the nozzle, the twisting ofthe paper starting to takeplace adjacent to the point of delivery fromthe nozzle, and means for supplying a burning medium to the strip afterit has started to be afiected by the twisting means.

In testimony whereof,.we have signed our names to this specification inthe presence of two subscribing witnesses.

LOUIS SCHULMAN. JOSEPH SCHULMAN. Witnesses:

MICHAEL R. MATTEO, ,RAYMOND I. BLAKESLEE.

copies of this patent may be obtained for five cents each,-by addressingthe Commissioner of Patents,

' Washington, D. 0.

